33 lines
901 B
Markdown
33 lines
901 B
Markdown
---
|
|
title: Foreach Loop
|
|
---
|
|
|
|
## Foreach Loop
|
|
|
|
The `foreach` loop executes a block of code for each item in a collection. The benefit of the `foreach` loop is you need not know how many items are within the collection to iterate through it; you simply tell your `foreach` loop to loop through the collection, as long as there are items within it. It is useful for iterating through lists, arrays, datatables, IEnumerables and other list-like data structures. It can be less efficient than a very well designed `for` loop, but the difference is negligible in most cases.
|
|
|
|
### Example
|
|
```csharp
|
|
|
|
// syntax
|
|
foreach (element in iterable-item)
|
|
{
|
|
// body of foreach loop
|
|
}
|
|
|
|
// sample code
|
|
List<string> Names = new List<string>{ "Jim", "Jane", "Jack" }
|
|
|
|
foreach(string name in Names)
|
|
{
|
|
Console.WriteLine("We have " + name);
|
|
}
|
|
```
|
|
|
|
### Output:
|
|
```sh
|
|
> We have Jim
|
|
> We have Jane
|
|
> We have Jack
|
|
```
|